
The psoas muscle is a long muscle deep in the human core, with one on each side of the spine. It is a crucial determinant of the body's range of motion and is responsible for maintaining posture and moving the hips and upper legs. Psoas syndrome is a rare condition that occurs when the psoas muscle is irritated. This can be caused by a sedentary lifestyle, overuse, muscle tightness, and muscle weakness, resulting in pain in the lower back, butt, groin, or hip.
| Characteristics | Values |
|---|---|
| Psoas Muscle Location | Two large muscles in the lower back, one on either side of the spine |
| Function | Connect the torso and lower body, maintain posture, and move the hips and upper legs |
| Psoas Syndrome | An injury or irritation of the psoas muscle causing pain in the lower back, butt, groin, or hip |
| Iliopsoas Syndrome | An umbrella term for conditions affecting the inner hip muscle, commonly caused by overuse or repeated hip flexion movements |
| Psoas Tendonitis | Inflammation of the psoas tendon due to overuse, muscle tightness, and muscle weakness, resulting in hip pain |
| Treatment | Physical therapy, exercises, steroid injections, and in severe cases, surgical interventions |
| Prevention | Avoid inactivity, maintain a healthy weight, and improve core strength and stability |
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What You'll Learn

Psoas syndrome
This condition is typically seen in athletes, including runners, dancers, and high jumpers, and results from overuse or trauma. It is often referred to as jumper's hip or dancer's hip and is a common cause of groin pain in athletes, especially in kicking sports or during adolescent growth spurts. Psoas syndrome can also be secondary to iliopsoas bursitis and other musculoskeletal disorders, making diagnosis challenging.
The psoas muscle can become irritated, inflamed, or strained, leading to significant discomfort and mobility issues. Individuals with psoas syndrome may experience lower back pain, often described as a deep ache, which can worsen with prolonged sitting or standing. The pain may also radiate down the legs, and be accompanied by tightness or discomfort in the groin area, hip stiffness, and reduced range of motion in the hip joints.
Prolonged sitting and certain physical activities, such as running, cycling, or weightlifting, can contribute to the development of psoas syndrome by causing muscle tightness and overuse. Emotional stress is another factor as the psoas muscle is believed to store emotional tension, and stress can lead to muscle tension and exacerbate existing issues.
Diagnosis of psoas syndrome involves a detailed medical history, physical examination, and specific tests to assess the flexibility, strength, and tension of the psoas muscle. Imaging studies like MRI or X-rays may also be used to rule out other conditions. Conservative management is often the first line of treatment, and physical therapy can help stretch and strengthen the psoas muscles. In refractory cases, corticosteroid injections or surgical intervention may be necessary for pain relief.
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Sedentary lifestyle
Spending long periods sitting down can irritate the psoas muscle. The psoas muscle is a long muscle deep in the body's core, with one on each side of the spine. These muscles are crucial for maintaining posture and moving the hips and upper legs.
When sitting for long periods, the psoas muscle can become contracted, leading to stiffness and reduced mobility. This can cause pain in the lower back and hip, as the muscle pulls and twists the vertebrae, compressing the spinal discs and joints. This compression causes pain and can lead to structural damage, degenerative disc diseases, and sometimes herniation.
Sitting for long periods can also cause the psoas muscle to become weak, making it less able to handle everyday strain. This can lead to muscle spasms or tears, which cause long-term pain and weakness.
To counteract the negative effects of a sedentary lifestyle, it is recommended to stand up at least every 30 minutes. Even small movements and stretches can help to reduce the risk of developing spinal problems and other issues associated with sitting for long periods.
In addition to the physical effects on the psoas muscle, a sedentary lifestyle can also lead to other negative health consequences. Reduced physical activity leads to fewer calories burned, increasing the risk of weight gain and obesity. A sedentary lifestyle is also associated with a higher risk of developing chronic diseases, such as type 2 diabetes and heart disease.
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Overuse
One of the main issues caused by overuse of the psoas muscle is iliopsoas syndrome, which is a broad term encompassing several conditions that affect the inner hip muscle that bends the leg towards the body. This syndrome is generally caused by overuse injuries and is common in athletes and dancers who perform repeated hip flexion movements, such as gymnasts, runners, and soccer players. The condition can cause pain in the hip and thigh, which worsens with activities that bend the hip, such as walking, climbing stairs, or sitting.
Psoas tendonitis is another condition that can be caused by overuse of the psoas muscle. The psoas tendon can become inflamed due to overuse, muscle tightness, and muscle weakness, resulting in a painful hip condition. Psoas tendonitis is most often seen in athletes participating in sports that require a lot of hip flexion, such as running, cycling, and swimming.
To treat overuse injuries of the psoas muscle, it is important to rest and decrease activities that cause discomfort. Relative rest and activity modification are crucial in the initial stages of recovery. Additionally, gentle stretches and exercises can help to strengthen the psoas muscle and improve hip flexibility and strength. Specific exercises, such as lunges, hip extensions, and mini-squats, can be incorporated into a daily routine to improve psoas muscle function and reduce pain.
It is important to note that a sedentary lifestyle can also contribute to psoas muscle issues. Long periods of inactivity can lead to a contracted psoas muscle, resulting in stiffness and reduced mobility, especially in the lower back and hip. Therefore, finding a balance between rest and gentle activity is crucial in managing psoas muscle overuse injuries.
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Tendonitis
The psoas muscle is a long muscle deep in the body's core. There are two psoas muscles, one on either side of the spine, that help with posture and movement of the hips and upper legs. Psoas syndrome is a rare injury to the iliopsoas muscle, typically seen in athletes, especially runners, dancers, and high jumpers. It usually results from overuse or trauma. It is frequently known as jumper's hip or dancer's hip.
Psoas syndrome can cause pain in the hips, lower back, butt, or groin. It might be challenging to identify the cause of this pain because there are many muscles in these areas of the body. Psoas syndrome is a rare condition that happens when the psoas muscle is irritated. It often occurs without a known cause and usually manifests symptoms of other, more common conditions like arthritis or sacroiliitis.
The psoas muscle is also a crucial factor in the body's range of motion. Patients with an abnormality in this muscle will experience joint stiffness in the lower back, hip, and extremities. One of the worst things for the psoas muscle is leading a sedentary lifestyle. Long periods of inactivity will eventually contract the psoas muscle, leading to stiffness and reduced mobility.
Psoas syndrome can often be secondary to iliopsoas bursitis, as well as a variety of other musculoskeletal disorders. Iliopsoas tendinopathy is associated with an excessive amount of fluid in the iliopsoas bursa, which is usually visualized on ultrasound. A “snapping hip” maneuver is a test that can be performed to diagnose iliopsoas tendinitis. The affected hip is positioned in a flexed, abducted, and externally rotated position. The hip is then passively moved into extension and internal rotation. If pain is provoked, it may suggest iliopsoas tendinitis.
Conservative management of psoas tendinopathy includes relative rest, activity modification, and exercise. Soft tissue techniques such as myofascial release may be useful in decreasing muscle tightness. Range of motion, stretching, and strengthening exercises should target the hip flexors and antagonistic muscle groups.
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Back misalignment
The psoas muscle is a long, ribbon-shaped muscle in the back, with one on each side of the spine. These muscles are crucial in maintaining posture and movement. They are also responsible for stabilising the lower back when the knee is lifted.
If the psoas muscle is contracted for a long period, it can lead to chronic pain. This can be caused by a sedentary lifestyle or by overworking the muscle. Chronic pain can also be caused by other conditions, such as arthritis or sacroiliitis.
If you are experiencing chronic lower back pain, it is important to seek medical advice.
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Frequently asked questions
The psoas muscle is a long muscle deep in your core. There are two psoas muscles, one on either side of the spine, that help maintain posture and move the hips and upper legs.
Psoas syndrome is a rare condition where the psoas muscle is irritated. It can be caused by a sedentary lifestyle, overuse, muscle tightness, and muscle weakness. It is also associated with other health conditions like Crohn's disease, IBS, diverticulitis, and colorectal cancer.
Symptoms of psoas syndrome include pain in the lower back, butt, groin, hip, and thigh. The pain can radiate to other parts of the body, and you may experience stiffness, reduced mobility, and issues with posture.
Treatment for psoas syndrome includes physical therapy, steroid injections, and rest. Gentle exercises, like lunges and squats, can also help to stretch and strengthen the psoas muscle.




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